Datasheet

DocID026289 Rev 6 129/149
STM32F411xC STM32F411xE Package information
141
Device marking for UFQFPN48
The following figure gives an example of topside marking orientation versus pin 1 identifier
location.
Other optional marking or inset/upset marks, which depend on supply chain operations, are
not indicated below.
Figure 51. UFQFPN48 marking example (package top view)
1. Parts marked as “ES”, “E” or accompanied by an Engineering Sample notification letter, are not yet
qualified and therefore not yet ready to be used in production and any consequences deriving from such
usage will not be at ST charge. In no event, ST will be liable for any customer usage of these engineering
samples in production. ST Quality has to be contacted prior to any decision to use these Engineering
samples to run qualification activity.
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